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Issue 3, 2006
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Growth of carbon sausages filled with in situ formed tungsten oxide nanorods: thermal dissociation of tungsten(VI) isopropoxide in isopropanol

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Abstract

In this article, we report a simple, one-stage, efficient synthetic method for the growth of carbon sausages filled with in situ formed tungsten oxide nanorods (CSTON), without any external catalyst. The thermal dissociation of tungsten(VI) isopropoxide, 5% w/v in isopropanol at 700 °C in a closed Swagelok cell in an inert atmosphere yielded a CSTON product. The product is characterized by SEM, TEM, EDAX, C, H, N, S analysis, TGA, Raman spectroscopy, and HR-TEM. The assignment of the structure of the sausages as a carbon shell, with the central part being the WOx, is based on SAEDS spectra. The same reaction was also conducted at a lower temperature closer to the temperatures of solvothermal reactions, at 350 °C. The reaction yielded WOx nanorods with a diameter ranging from 10 nm to 50 nm and a length of up to 6 μm.

Graphical abstract: Growth of carbon sausages filled with in situ formed tungsten oxide nanorods: thermal dissociation of tungsten(vi) isopropoxide in isopropanol

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Publication details

The article was received on 12 Oct 2005, accepted on 19 Dec 2005 and first published on 20 Jan 2006


Article type: Paper
DOI: 10.1039/B514478G
Citation: New J. Chem., 2006,30, 370-376
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    Growth of carbon sausages filled with in situ formed tungsten oxide nanorods: thermal dissociation of tungsten(VI) isopropoxide in isopropanol

    S. V. Pol, V. G. Pol, V. G. Kessler and A. Gedanken, New J. Chem., 2006, 30, 370
    DOI: 10.1039/B514478G

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